Pile point



4 Sheets-Sheet 2 wfL. BALD PILE POINT Filed Feb. 3, 1954 Aug. 7, v 1934.

INVENTOR /farre/z 9a/Q BY www( 4M ATTORNEYS Aug. 7, 1934. wl.. BALD 1,969,251

PILE POINT Filed Feb. 3, 1934 4 Sheets-Sheet 3 Figa /f 77 3/ L; 6| i-: '.IIB g L Fig 7.

MMM

ATTORNEYS Aug. 7, 1934. w- BALB 1,969,251`

PILE POINT Filed Feb. 5, 1934 4 Sheets-Sheet 4 x k v ATTORNEY Patented Aug. 7, 1934 A I 1 ITED STATES ATE T PILE POINT Warren L. Bald, Philadelphia, Pa. Application February 3, 19.34, Serial No. '709,677

20 Claims. (Cl. 61-78),

FFICE This invention relates to pile points and parsplit ring on which it is supported being omitted. ticularly to points for hollow piles, so constructed Fig. 3 is a bottom plan View of the point; and arranged that they can be pulled up or re- Fig. 4 is a longitudinal sectional elevationv trieved after the pile has been driven. similar to Fig. l but showing the pile supporting 5 f Various types of removable or withdrawable lugs withdrawn into the pile point, the point -60 pile points have been designed but it has been being shown in a position ready to be pulled upfound difcult to so construct a point that it can wardly withdrawn from the pile; be driven effectively but can be withdrawn after Fig. 5 is a longitudinal sectional elevation taken the pile is driven. In certain forms of construcat right angles to Fig. 4;

l0 .tion the pile rests en 01- is supported on lugs, Fig. 6 is a longitudinal sectional elevation 65 or dogs carried by the point, the lugs or dogs through the DOD; being held in their outer or pile supporting posi- Fig- 7 iS a 1L1013 Plan VSW 0f vthe COIlStruCtOn tion by cams or core blocks or in some other shown in Fig. 6; Suitable manner- Fig. 8 is a top plan view oftthe core block orA It is obvious that the intermittent heavy blows 111g hOldllg means? 70' ef a pile hammer on the pue subject the pile Fig. 9 is a longitudinal lsectional elevation of supporting lugs to very severe jars or shocks the b10Ck; and in certain types of construction it has been 'Flg- 10 1S a SeCtlOIla eleValOn 0f the 100k1f1g found that the lugs are sometimes loosened and llng;

' driven into the point, preventing further driv- FS- 11 S 21 60D P1211 VeW 0f the lIig ShOWH in 75v 1^ ing of the pile. Flg- 10;

one of the objects of the invention is to Fis. 12 1S a plan View of the ring which is adaptprovide means for electively locking the lug hold- @d 0 0 Test 0D the lugs and G0 SllpPOl'l'/ the Dile;

ing means against accidental displacement or Fig. 13 is a transverse sectional elevation taken withdrawal due to the shocks or `iars to which Substantially 011 line 13-13 0f Fig. 1, 100k-ing in 80 the peint is Suhl-@ted` the direction of the arrows;

Another Object of the invention is to provide Fig. 14 is a transverse sectional elevation taken locking means of the character specilied, so con- Substantially 0D lille 14-14 0f Fig'. 1, lOOking in structed and arranged that it can be easily the direction 0f the MTOWS;

a0 and qulekly released when desired Figs. 15 and 16 are transverse sectional eleva- 85 v Another object of the invention is to provide tions Wife? Substant-a11y- 0n IHS 15-'15 and means fer rellevlng the lugs or dogs from the 16-16 or Fig. 4, looking in the dlrection of the direct thrust of the pile, said means being so arrows? constructed and arranged that it een be Wiel* Fig. 17 is a longitudinal sectional elevation of 85 drawn with the point after the pile has been One'of therlugs; 90

driven Fig. 18 1s a front elevation of the lug shown 1n Another object of the invention is to provide Fig- 17? 31nda pile point and releasing and withdrawing means Flg- 19 15a rem' eleva'tlon 0f the lug Shown m therefor, so constructed and arranged that the Flg- 17- .point can be easily and quickly Withdrawn after The invention briefly described consists of `a 95 l the pile has been driven removable lpile point having a plurality of open- Another object of the invention is to provide mgs find lugs @armed by me pomt and adapted a pile point that is rugged in construction and to end through the openmg A Core block is will stand the severe usage to which such devices provlded for holdmg the lugs m extended position are put' pile on the lugs a supporting ring is preferably Further obects of the invention Will a ear from the follJowing specication taken inponmounted on me lugs Bind' 1s adapted to Support the necton with the drawn s which rm t f pile. Means 1s provided for releasably locking g O a par 0 the core block 1n lug engaging position in order and in order to prevent the direct thrust of the 100 f this application and in which to prevent accidental displacement of the block 105 y Fig. 1 is a longitudinal sectional elevatn and releasing of the lugs during the driving of the of a p11@ pmt mounted 1n positwn 0n the lower pile. The locking means is sol constructed and end of a p1le; arranged that it will be automatically released Fig. 2 is a sectional elevation taken at right when the core is raised to release the lugs. Furangles to Fig. 1, the hollow pile or pipe and thermore, when the lugs are released and the 110- point is withdrawn, the supporting ring which is preferably split will be forced downwardly on the point and means are provided for engaging the ring and supporting it during the Withdrawal of the point. The point withdrawing means is so constructed and arranged that as this means is pulled upwardly the locking ring will be automatically released and upward movement of the core block will cause the locking ring to be rotated and released from the coacting locking means carried by the point.

Further details of the invention will appear from the following description.

In the embodiment of the invention illustrated in the drawings, there is shown a pile point having a substantially cylindrical body portion 2O and a tapered lower end 21. The end 21 is provided with tapered projections 22, 23, 24 and 25, the upper ends of which form ledges 26. These projections aid in splitting and breaking substances, such as rocks, in the path of movement oi the pile point.

Y The point is provided with a plurality of lateral openings 30, the lower edges of the openings being inclined, as Vshown at 31. A lug or dog 32 isY pivoted at 33 to pivot lugs 34 extending into the pile point, each lug having ledges 35 and 36. The lugs 32 are pivoted adjacent the openings 30 and are adapted to extend therethrough, as shown ,in Figs. 1 and 2. Each lug 32 has formed on the upper end thereof, an inwardly extending dog 37.

The inner surfaces of the lugs are preferablyV tapered,l as shown at 40, and the lugs are -so pivoted and so constructed and arranged that they can :jswing inwardly, as shown in Fig. 4, so as to permit .jwi'll be forced longitudinally on the point as the point is drawn upwardly. As the ring reaches the tapered lower end 21 it will contract and will come to rest on the ledges 26 of the projections 22 to 25. Y

v3 When the pile point is positioned on the bottomA ofthe pile, the lugs 32 are held in their outwardly 4cesses 52 whichreceive the dogs 37 of the lugs 32.

Abead or shoulder 53 is formed at the lower end of each of the recesses 52.` The core has a substantially cylindrical inner surfaceY 54 and a-pair of cross bars 55 and 56 extend across the upper end of the core, as shown lparticularly in Figs. 8 and 9. Webs 57 and 58 extend downwardly along the inner wall of the core from each of the cross bars 55 and 56. The bars 55 and 56 and the webs which connect therewith are disposed Nparallel to each other, as clearly shown in Figs.

1 and 9. The webs 57 and 58 and the bars V55 and 56 form V-shaped openings, as shown particularly in Fig. 5. -v

. A plate 60 is slidably mounted in the opening "or slot 61 `formed between the bars 55 and 56 and isv provided at its lower end with laterally projecting lugs 62 and 63 which are adapted, when the plate is in the elevation position shown in Fig. 5,y to engage beneath the bars 55 and 56 and between the webs 57 and 58. The plate is guided in its sliding movement by the bars and also by the parallel webs.

The plate is carried by a U-shaped supporting bail 65, a pin 66 being carried by the lower 8O end of the bail and extending through the plate 66. The pin and bail also support a U-shaped block having a central portion 67 and depending end portions 68 and 69. The central portion 67 is slotted and receives the upper end of the plate 66, as shown in Fig. 1.

The body portion 20 of the pile point is provided at its upper end with inwardly extending oppositely disposed lugs or flanges '70 and 71 adapted for engagement by the flanges 51 of the core block 58.when the core block is raised to the position shown in Fig. 4.

The inner surfaceof the body portion 20 of the pile point has formed thereon and projecting inwardly therefrom, two sets of lugs 75, 75 and '76, 76. The lugs 75 are substantially vrectangular in shape but the lugs 76 are Vwedge shaped or tapered, as shown at 77 in Fig. 6. From the showing inV Fig. 7 it will be noted that the lugs 75, 75 are disposed ldian'letrically opposite each other and this is also true ofthe lugs 76, 76. Furthermore; the flanges 70 and 71 are disposed between the lugs 75 and 76.

A locking ring 80 is supported on the flanges 5l, 51 and .surrounds the upper end of the core blocky 58. This ring is provided with a pair of dia-metrically opposite outwardly extending tapered projections 8l Yand 82 and is also notched at diametrically opposite points on its upper edge, as shown at 83. The projections 81 and 82 are wedge shaped or inclined at an angle opposite to the inclination of the surfaces or edges 77 of the lugs 76 which are formed on the inner surface of the body portion 20 ofthe pile point.

The operation or the use of the ypile point will @15g now be described.

wrench, engaging the notches 3, to such a position that the projections 81 and 82 of the ring will pass downwardly between the inwardly extending lugs 75 and 76 carried by the body portion 20 of the pile point. The ring will theni be rotated to a position in which the projections 8l and 82 will engage the inclinedsurfaces 77 of the lugs 76. When ythe plate 60 is lowered, the end portions 68 and `69 of the U-shaped block 67 will be positioned between the projecytions 81 and 82 and the lugs 75and 76, thus holding .the ring 80 against rotational movement on the flanges 51 of the core block. The

`split ring 41 is mounted on the ledges 35 and 146is 36 formed on the dogs. l

It will be obvious that any tendency of the 'lugs 32 to be displaced inwardly during the driving'of the pile, and furthermore, any tend- 'ency of the core blockv 50 to be displaced or to 3145*;

jump upwardly under the successive and intermittent shocks during the driving operation, will be effectively counteracted and prevented by the locking action of the projections 8l and 82 and the lugs 76, The hollowv pile90 will be support- 15o;

ed on the ring 41, which in turn is supported by the lugs 32.

After the pile has been driven to the desired depth, thev point can be retrived in the following manner: In order to withdraw the point, an upward pull is exerted on the cable 91 which is connected to the Ushaped bail 65 and extends upwardly through the hollow pile. The plate is thus elevated, as shown in Figs. 4 and 5, and as the plate is raised the block 67 and down?. wardly extending ends 68 and 69 are also elevated. As the block 67 is raised, the portions 63 and 69 will be withdrawn from between the lugsand the projections 8l, 82. When the plate 60 has been raised to the position shown in Figs. 4 and 5, the lugs 62 and 63 engage beneath the bars 55 and 56 and raise the core block 50. As the block is raised, the pivoted lugs 32 will be released and the beads or projections 53 at the lower ends of the longitudinal grooves 52 will engage the dogs 3'? on the lugs 32 and swing the lugs inwardly. Furthermore, as the core block is raised from the position shown in Fig. 1 to the position shown .in Figs. Lland 5,

.the ring will be rotated by the engagement of the inclined surfaces "I7 on the lugs '76 andv the correspondingly inclined surfaces on the pro-v jections 81 and 82. This is permitted since the ends 68 and 69 of the block 67 have been withdrawn, as above stated.

When the lugs 32 are withdrawn through the openings 31 in the pile point, the split ring 4l will be released, and as the point is raised the engagement betweenthe ring 4l and-the lower end of the hollow pile will force the ring down-` wardly on the point and Vwhen the ring reaches the tapered lower vend of the point it will'contract and will come to rest on the ledges 26 formed on the upper ends of the projections 22, 23, 24 and 25. As the pull on the cable 91 is continued, the engagement of the ianges 51 beneath the lugs 70 and '71 on the pile point will cause the pile point to be raised.

From the forego-ing description it will be clear that as the cable 91 is pulled upwardly, the locking ring 80 will be automatically released and continued upward pull on the cable will cause the core block to be elevated, the lugs 32 to be withdrawn, and the point to be pulled upwardly through the hollow pile. In other words, a single operation is necessary to retrieve the pile point.

Furthermore, it should be clear that the lugs 32 and core block 50 will be effectively locked in position during the driving operation and will be prevented from accidental displacement due to the jarring and shocks caused by the operation of the pile hammer.

Although one specic embodiment of the invention has been particularly shown and described it will be understood that the invention is capable oi modication and that changes in the construction and in the arrangement of the various cooperating parts may be made without departing from the spirit or scope of the invention, as expressed in the following claims.

What I claim is:

l. A pile point having a plurality of openings therein, a lug movable into each of said openings and adapted to extend therethrough to form a ysupport for a hollow pile, a core block movable into position to engage said lugs and hold the lugs in supporting position, and means for locking said block in operative position.

2. A pile point having a plurality of openings therein, a lug movable into each of said openings into position to engage saidlugs and hold the lugs in supporting position, and means for locking said block in operative position, said locking means being automatically releasedvr as the point is withdrawn from the pile.

3. A pile point having a plurality of openings.l

therein, a lug movable into each of said openings and adapted to extend therethrough to form a support for a hollow pile, ay core block movable into position to engage said lugs and hold the.

lugs in supporting position, and means including a ringcarried by said block for locking saidV block in operative position.

4. A pile point having a plurality of openings therein, a lug movable into each of said openings and adapted to extend therethrough to forma;

support for a hollow pile, a core' block movable into position to engage said lugs and hold the lugs in supporting position, and means including a ring carried by said block, and coacting means in the pile point for locking said block in operavrotatable means carried by the core block, and

coacting means in the pile point for locking said blockin operative position. Y

and adapted to extend therethrough to form. a: support for a hollow pile, a core block movable' icsl 6. A pile point having a plurality of openings therein and lugs adapted to project through said to engage said lugs and hold the lugs in operative position, and coacting means carried by the coreblock and pile point for locking the block in lug f engaging position.

'7. A pile point having a plurality of openings therein and lugs adapted to project through said openings, a vertically movable core block adapted to engage said lugs and hold the lugs in operative position, coacting means carried by the core block and pile point for locking the block in lug engaging position, and means for holding said coacting means in locking position.

8. A pile point having arplurality of openings therein and lugs adapted to project through said openings, a vertically movable core block adapted to engage said lugs and hold the lugs in operative position, coacting means carried by the core block and pile point for locking the block in lug engaging position, and vertically movable means for holding said coacting means in locking position.

9. A pile point having a plurality of openings therein and lugs adapted to project through said openings, a vertically movable core block adapted to engage said lugs and hold the lugs in operative position, and coacting wedge-shaped means carried by the core block and pile point for locking the block in lug engaging position.

10. A pile point having a plurality of openings therein and lugs adapted to project through said openings, a vertically movable core block adapted to engage said lugs and hold the lugs in operative position, coacting means carried by the core block and pile point for locking the block in lug engaging position, means for raising said co-re block and pile point, and means movable with said raising means for holding said coacting means in locking position.

l1. A pile point having a plurality of openings therein and lugs adapted to project through said openings, a vertically movable core block adapted to engage said lugs and hold the lugs in operative position, coacting means carried by the core block and pile point for locking the block in lug engaging position, means for raising said core block and pile point, and means movable with said raising means for holding said coactingl means in locking l position, said holding means being moved. out of operativeposition'as said raising means is operated to raise Vthe core and point.

12. In combination, a pile point having a plurality of openings therein, lugs adapted to project through said openings, and an expansible' and contractible ring adapted to rest on said lugs.

13. In combination, a pile point having a plurality of openings therein, lugs adapted to project through Ysaid openings, an expansible and contractible ring adapted to rest on said lugs, and means on said pile point for supporting said ring when the lugs are retracted and the point is raised. Y x

14.' In combination, a pile point having a plurality of openings therein, lugs adapted to project through said openings, a ring adapted to rest yon said lugs, and projecting means on said pile point for breaking up material inthe path of movement of the pile point as said point is driven.

15. In combination, a pile point having a plurality'of openings therein, lugs adaptedto project through said openings, a core block for holding the lugs in projected position, and means on the coreblock engageable with the lugs for engaging and retracting the lugs as the 'core block is raised. 16. In combination, a pile point having a plurality ofv openings therein, lugs adapted to project through said openings, dogs on said `lugs positioned Within the point, and a core block adapted to rest on said dogs and to hold said lugs in ject through said openings, dogs on said lugs po' sitioned Within the point, a core block adapted to rest on said dogs,A and to hold said lugs inprojectedposition, and means for holding said coreA block in lug engaging position.

18. In combination, a pile point having a plurality of openings therein, lugs adapted to project through said openings, dogs on said lugs positioned within the point, acore block adapted torest on said dogs and to hold said lugs in projected position, and means onthe core block engageable with the dogs to swing the lugs inwardly When the core block is raised.

19. A pile point having a-plurality of openings therein, a lug movable into each of said openings and adapted to extend therethrough to form a support for aholloW pile, a core block movable into position to engage said lugs and vhold the lugs insupporting position, means -for locking said block in operative position, and means car# ried by the core block operatable'v successively to release said locking means and to raise the coreV block and pile point.

20. A pile point having a pluralityof openings Y therein, a lug movable into each of said openings and adapted to extend therethrough to form a support for a 'hollowv pile, a core yblock movable into position` to engage said lugs and hold the lugs v WARREN L. BALD. 

